I attended their Bosque "tours" early this century (feel really old) and looks like they both aged alot, especially Arthur. Seems they are still teaching pretty much the same things but with more stunning shots. I was originally attracted by his "cranes in fire" shot. He was so lucky having that rare opportunity with the right flock of cranes, in the dreamy cold morning fog set on fire by the back lit morning sun. Up to today, I still haven't seen others to make a similar shot.